Matrix making machine



Qct. 27, 1942 E. c. LAMPSON 2,300,297 MATRIX MAKING MACHINE Filed Jan.31, 1940 7 Sheets-Sheet 1 r g INVENTOR wrmessgs 179 Edward CCLam s uATTORNEYS Oct. 27, 1942. E. c. LAMPsoN MATRIX MAKING MACHINE Filed Ja n.31, 1940 7 Sheets-Sheet 2 nu HI VIII/l/ll/A WII/IIIIIIAIIII u' INVENTOREduancl C Lani 250a BY W wa-ruEs'SES ATTORNEYS OCL 1942- E. c, LAMPSONMATRIX MAKING MACHINE Filed Jan. 31, 1940 7 Sheets-Sheet 3 0 942. y' E.c. LAMPSON 7 2,300,297

MATRIX MAKING MACHINE I Filed Jan. 31, 1940 7 Sheets-Sheet 5 WITNESSES Bwar-d am Son r I 7a BY 77% M9% ATTORNEY-S Oct. 27, 1942. Q LAMPSON2,300,297

MATRIX MAKING MACHINE Filed Jan. 51, 1940 7 Sheets-Sheet e ATTORNEY Oct.27, 1942.

E. c. LAMPSON MATRIX MAKJI-N'G' MACHINE Filed Jan. 51, 1940 7Sheets-Shed 7 .,INV ENTOR Edward C. Lampson BY m WQ M ATTORNEYS PatentedOct. 27, 194-2 UNHTE ATEN'E orrice 31 Claims.

This invention relates to an improvement in the making of matrices fortype-casting. By an extension of this fundamental idea the principles ofthe invention can be devoted to the making of matrices for the castingof printable characters other than type. But in order to emphasize theprimary use of the invention, this description is confined to themanufacture of a type matrix, the only exceptions occurring in thedescription of those modifications which comprise a logical change inthe structure for purposes analogous to the formation of said matrix.

In order to lend emphasis to the simplicity and utility of the instantmachine, it is desired to briefly review the prevailing mode of making amatrix for newspaper and similar work. The

customarily known matrix consists of a dry mat known as a stereotype matto those acquainted with the art, which consists of a sheet of anappropriate composition which will yield to the heavy pressure put uponit in the formation of the matrix, and later in the process willwithstand the hot metal poured against it in casting. Although this matis commonly called a dry mat, it actually carries a degree of moisturewhich is a necessary asset to the yielding which must occur when thepressure is applied as stated.

The type is set up either by hand or by a typecasting machine and islocked in a form. The stereotype mat is superimposed upon the type facesand the combination of the type form and mat are subjected to sufficientpressure to force the mat into all of the interstices of the type formso that the resulting matrix comprises a positive copy of theintellectual matter to be reduced to print. Said mat is then introducedinto a casting machine wherein hot metal is poured against it to producea negative form which comprises the entire type set-up.

It is also known to those acquainted with this 'art that the operationof producing the type slugs in a type-casting machine involves very muchmechanism. The individual type characters as released by the act of theoperator, are manually or mechanically justified after a series of thecharacters is released to produce the nearest measurement to a lineoftype of column or other width, whereupon said series of characters ismoved over to the casting position whereat the pouring or forcing of aquantity of hot metal thereupon produces the ultimate slug. Numbers ofthese slugs are locked into the form mentioned before, and from there onthe stereotype mat is made asstated, the latter being followed by thefinal casting operation which produces a cast plate of printable type.

It is with the View to eliminating a large number of the acts incidentalto the above process, as well as to avoiding the great costs which areattached to the purchase and maintenance of the machinery necessary tothe foregoing that the instant machine has been devised. .Said machinecan be made and sold at a relatively low cost, comparable to that of anordinary good typewriter, and for that reason will be available to alarge number of persons in the printing trade who have need for acontrivance such as this which will, enable the production of straightlines of type for plain columnar printing. With this preface in mind theobjects of the invention are as follows:

First, to provide a simple but entirely effective machine for use inhigh composition, wherein a type character or characters are impressedby rolling and not percussion directly upon or into the surface of asuitable substance, for example a prepared stereotype mat, the resultantmatrix or mold being adaptable to a subsequentmechanical casting processfor the production of the intended character or characters in printableform.

Second, to provide a machine which is somewhat similar to an ordinarytypewriting machine in its general aspects, in that it includes amovable carriage, a platen and an arrangement for impressing a typecharacter or characters, one of the distinguishing features being theadaptability of the instant machine to a prepared stereotype mat intowhich the characters are impressed in sunken form by a rolling action onthe principle of typing off a line of writing, said mat being directlyuseable as a casting matrix upon its withdrawal from the machinegenerally without any further treatment.

Third, to provide a type element which is first turnable to cause theregistration of a selected through a gap narrower than the material is,

thick so that the type face, which comprises one side of the gap, ispressed into said material thus forming a mold for subsequent casting.

Fifth, to provide a matrix making machine wherein the justification ofthe type is accomplished at will on the point system, in other words, amachine wherein the carriage may be moved different distances at thewill of the operator for successive printable characters, thus toregulate the carriage movement to all widths of the type faces.

Sixth, to provide a machine of the character described, the principlesof which are applicable to the production of printing upon materialsother than a stereotype mat, for example, the machine can be used formaking stencils on paper, wax, metal or a suitable composition; bychanging the faces of the type elements so that the indicia are sunkenthe machine can be employed as an embossing machine, or by adding anappropriate inking device said machine will perform as a typewriter.

Other objects and advantages will appear in the following specification,reference being had to the accompanying drawings, in which:

Figure 1 is a plan view of the matrix making machine.

Figure 2 is a cross section taken on the line 22 of Fig. 1.

Figure 3 is a longitudinal section taken on the line 3-3 of Fig. 1.

Figure 4 is a longitudinal section taken on the line 4-4 of Fig. 1.

Figure 5 is a diagram illustrating the act of rolling in the typeimpression.

Figure 6 is a front elevation of the machine.

Figure 7 is a cross section taken on the line l! of Fig. 1, the carriageas well as its associated parts being shown in elevation.

Figure 8 is a detail section taken on the line 8-8 of Fig. 1,illustrating a micrometer adjustment.

Figure 9 is a rear elevation of the machine.

Figure 10 is a detail sectional view of the back roller adjustment.

Figure 11 is a perspective view of the abutment lever.

Figure 12 is a detail view of a portion of the turnable type elementillustrating some of the types and spacing blocks.

Figure 13 is a vertical section taken substantially on the lineiS-l3 ofFig. 6.

Figure 14 is an elevation of a portion of the left end of the machine,particularly illustrating the operation of the actuating dog.

Figure 15 is an elevation of a sheet of stereotype material hereinafteridentified as the mat, particularly illustrating a mode of ruling theworking surface.

Figure 16 is an elevation and a cross section of a portion of the matillustrating the type impression in sunken form.

Figure 17' is an elevation and section of a portion of the matillustrating the type impression in raised form.

Figure 18 is an elevation and section of a portion of the matillustrating the making of raised characters in Braille type.

Figure 19 is a partially elevational and sectional view of a matrixmaking machine embodying some structural simplifications, the typeelement being omitted.

Figure 20 is a vertical section taken substantially on the line 29- 29of Fig. 19, the type element and its associated parts being included.

Figure 21 is a plan View of a part of a matrix making machine furthermodified to enable the making of characters as on the principle of atypewriter so as to be easily read.

Figure 22 is a partially sectional and elevational view on the order ofFig. 4, illustrating the initial occurrence upon depressing the key.

Figure 23 is a partially sectional and elevation view illustrating thefinal occurrence upon said depression of the key.

Figure 24 is a partially sectional and elevational view particularlyillustrating the upper and lower guides.

Figure 25 is a detail perspective view of one of the inserts to be usedin conjunction with the lower guide.

Figure 26 is a detail view of a modification of the lower guide.

Figure 27 is a perspective view of a type of the inserts adapted to beused in conjunction with the lower guide in Fig. 26.

In carrying out the invention provision is made of a base I which is ofa generally rectangular form (Fig. 1) but conceivably of any other shapethat will be adaptable to the mechanism which it carries. In theapproximate center of this base there is a standard 2 (Fig. 3) which ismade rigid by screws 3 or their equivalents which fasten the standardflanges 4 down upon the base. Said standard has a forked extension 5(Fig. 1) approximately half way of its height and directed rearwardly(away from the operator who will occupy a position adjacent to the frontedge 6 of the base), and an arm I (Fig. 3) which extends in the samedirection as the fork 5, but is considerably longer.

The forked extension 5 carries a pin 8 which is preferably secured atits ends in the fork by cross pins 9 (Fig. 1). The pin 8 thus comprisesa stationary pivot and it is upon this pivot that a lever i9 isswingably mounted. This lever is swingable vertically approximately tothe extent denoted by the full and dotted line positions a, b, (Fig. 3).Said lever comprises the central stem ll, one end of which makes theactual pivotal connection with the extension 5 at the pin 8, the otherend of which merges into a transverse bar 52 (Fig. 1), the length ofwhich is almost equal to the breadth of the base I. Braces 13 joined tothe stern H and the virtual extremities of the bar 12 make a rigid unitof the lever 16 which is adapted to respond as a unit when the actuatinglever I4 is worked in the manner described below.

Said lever, which constitutes the selecting means, has a key I5 on itsforward extremity (Fig. 1). This key is adapted to be grasped by theoperator for the purpose of swinging the lever 14 laterally in themaking of a type selection. Thereupon it is adapted to be depressed forthe purpose of making the impression of the selected type in the workingface of a mat. As brought out herein the term mat is to be regarded inits broad sense as consisting not only of paper or similar flong used instereotyping, but also any other sheet upon which a legible character isadapted to be impressed, imprinted or embossed. For these purposes thelever l4 includes a hub 16 (Fig.1) of forced formation to straddle thestandard 2. The components I! of the forked hub flare rearwardly from aposition slightly belond that of a pivot pin l8 on which the lever isadaptedto be swung approximately between the full and dotted linepositions c, d, (Fig. 3).

The pivot pin- 19 is fixed at its middle crosswise of a shaft l9 whichis erect in respect to the base I, because it occupies the axialposition of the standard 2. tend from the sides of the shaft l9 throughslots 20 in opposite sides of the standard 2, the extremities of the pinthen serving as trunnions on which the hub I6 is swingable in the mannerstated. nents I! are connected by an arcuate bridge 2i, the curvature ofwhich is struck from the axis of the shaft [9 as the center. pies a slot22 in the central stem H of the lever H], from which circumstances it isreadily evident in Fig. 3 that when the lever 14 is depressed to thedotted line position d with a corresponding swinging of its hub It onthe pivot pin I8, the bridge 21 will lift the lever 15 to its dottedline position b by a swingingon the pin 8.

The ends of the pin [8 ex- The extremities of the flared compo- Saidbridge occu- A selective turning of the lever 14 also occurs Everyturning movement is imparted to The hub 23 of a gear segment 25 issecured The latter The quadrant 24 meshes with a, gear 29 which is keyedat 38 (Fig. 3) to the reduced end 3| of a shaft 32. 33 which rests uponthe gear 29. has a disk 34 secured to it by screws 35 or equivalentmeans. provide a large bearing surface for the type holder 36 of a typeelement generally designated 3'7. which occupies the bore 38 of the disk34.

The reduction defines a shoulder The gear 29 The purpose of the disk 34is to The holder 35 has a sleeve terminal 38 40 The shaft 32, in turn,occupies the bore of the holder 36 and extends a sufficient distancethereabove to come flush with a cover plate 4!. The latter has bosses G2at diametrical points, through which the ends of pins d3 protrude asufiicient distance to receive the extremities of a stout spring wire 46which transfixes said ends of the pins through small holes d5 providedfor the piu'pose. in the type holder 35 and in a sense they key said 50holder and the cover plate 4! together. center of the spring wire 45occupies a hole which extends commonly through the small tip 46 of theshaft 32, and a heavy washer 4! which is emplaced upon said tip so as toboth ride the exposed extremity of the shaft 32 as well as the adjoiningsurface of the cover plate 4|. course pin 43 thrust through the tip itholds the shaft and spring assemblage firmly together.

The pins 33 arerigidly set The Thus far it can be seen that a turn ofthe 60 gear segment 24 in either direction will correspondingly turn thegear 29. tion to the shaft 32 it will be understood that the stoutspring wire 34 will serve to transmit the driving force to the typeelement 31. the shaft 32 and the type element 31 initially turn as aunit, but laterin the operation when the time for the essentialrolling-in motion arrives, the type element 31 is adapted to turn on theshaft 32 independently of the gear 29 which, at that time, will belocked by the then stationary gear segment 24. wire 44 is stout, yet atthis moment it will yield, permitting the relative movement described.

Tracing this mo- Thus Although the spring Reverting to the reduced end3! it is seen that 7.

this occupies a bore in the gear 29 which extends into an extensionsleeve 43 pendent from the gear. Said sleeve is turnable in a bore 59 atthe end of the arm 1. The latter provides a bearing for the gear 29, infact for the entire type element assemblage, the latter being heldemplaced on the arm by a nut 51 which is screwed onto the sleeve 49 aswell as a nut 52 on the extremity of the reduced end 3!, said nutbearing against a washer 53, as shown.

At this point it is desired to explain that the specific bearingstructure for the type element assemblage is not necessarily adhered to.Said assemblage can be supported upon the arm 1 without involving theuse of the sleeve 69 or other minor parts included in the descriptionincident thereto. This provision for variation also extends to the types54. These types are of any ordinary kind, and in any event they includethe type faces 55 which stand exposed beyond the peripheries of theholder 36 and cover plate 4i. One mode of emplacing the types 5d is toset them in radial positions in the circumferential rabbet 55 (Fig. 12)and to secure them in place by blocks 51 which not only comprisespacers, but wedges as well.

In actual practice the type faces 55 may be applied to the periphery ofthe type element 31 in any desired way. In lieu of using individualtypes, the periphery of the type element may have the faces formedthereon directly and integrally. A type face of this character willproduce a recessed impression 58 (Fig. 16). Instead of embossing theperiphery with raised characters, the iatter may be engraved in the typeelement so as to produce raised impressions 59 (Fig. 1'7). On the sameprinciple the raised characters 60 (Fig. 18) may be in Braille type tobe read by blind persons. From thisit will be understood that thespecific manner of emplacing the type faces 55 (Figs. 3 and 12) is notto be regarded as a limitation.

Reference has been made to the rolling-in act whereby the type faces 55(Fig. 3), whether embossed as shown or engraved into the periphery ofthe type element 31, are impressed into the working face of the mat 62(Fig. 15). This rolling-in act is essential because the requisite power.could not be obtained by a percussive movement, as in a knowntypewriter, certainly not with that degree of uniformity which will besupplied by the instant arrangement. The latter provides for theformation of characters in the mat 52 at an absolutely uniform depth(01' height) in reference to the working face 6!. This is essential inthe event of the mat being used for stereotyping work because theultimately cast lines of type must be the same in height so as to insureuniformprinting.

This result is achieved largely by the roller abutment 63 (Figs. 1, 3and 11). This abutment is located at the impression or printing point(54 (Fig. 1) directly behind the mat 62 (Fig. 3). It is carried by anabutment lever 55 which is pivoted at 66 to a bar 51 which spans thedistance between a pair of headers 58, 59. The bar 6.!

comprises a track for the carriage which is gen- I erally designated Hi.It is secured to the headers 68, 59, in any preferred way so as to makea rigid construction, and said headers are secured to the base i byfianging them at ll and driving screws '52 through as plainly shown inFig. '7, thus establishing the-foundation of a frame for a movablecarriage. Thepivot (it of the lever 65 may merely com,

prise a screw pendent from the bar 61. The latter is either slotted orcut in at 12 (Fig. 3) from the front edge a sufficient distance toaccommodate the stem 13 which carries the roller abutment. The actualcarrying is done by a screw stud M (Fig. 3) on which the roller isfreely revoluble. The screw stud is driven into the stem 13 and thelatter is affixed to the lever 65 in any suitable manner.

A bent arm 1'5 at that extremity of the lever 65 opposite to the onewhich carries the roller abutment 63 supports a locking roller it whichis adapted to be actuated by the lever l9. For this purpose the lattercarries a cam Tl (Fig. 3). There is only one of these cams and it issituated at the right extremity (Fig. 1) of the transverse bar l2. Saidbar is either made deep enough or provided with an extension 78 thatwill accommodate one of a pair of screws 19, 80,

through which the connection of the cam TI is made with the lever Ill.

The working face of the cam I1 is divided into an approach 8| and an arc82. The latter is struck from the center of the pivot 8. Thus absoluteuniformity is assured for every locked pisition of the abutment lever 65as well as absolute uniformity of the gap 83 (Fig. at the impressionpoint 84. The walls of this gap, which is constrictable as later broughtout, comprise the type face 55 of the selected type stationed at thepoint (i l and the contiguous part of the perimeter of the rollerabutment 63. The mat 2 goes through and occupies this gap.

Use is made of the screws 19, 8!), (Fig. 3) to regulate the width of thegap 83. A fairly heavy spring 84 presses against the back of the arm 15,thereby to keep the roller 16 in contact with the cam I? and to tend tokeep the roller abutment 83 at its farthest spaced position from the mat52. By driving the screws 79, 80 into the extension '58 (Fig. 3) the cam17 will be moved away from said extension, thereby to lessen the initialgap and to later cause the making of a deeper impression in the mat whenthe rolling-in step occurs. The depth of the type impression is thusadjusted to a fine degree, but said depth of depression will remainabsolutely uniform for whatever adjustment may have been determined atthe cam 71.

Now referring to the left end of the transverse bar I 2 (Fig. 1) it isseen that this bar there terminates in a box 85. This box has a bore 86(Fig. 14) which is slidably occupied by an actuating dog 87. This dog iscross sectionally noncircular (Fig. 7) to avoid the chance of itsturning in the box, Each of a pair of springs 88 (Fig. l) is anchored toa pin 89 projecting from the sides of the box. The opposite ends ofthese springs are anchored to the ends of a cross pin 90 whichtransfixes the forward end of the dog 31. The latter also carries a setcollar 92 which abuts the front of the box 8 5 and limits the extensionof the point 92 of the dog toward a toothed wheel 93 (Fig. 14).

Use is made of a brake 94 (Fig. 14) for the holding of the toothed wheel93 in its successive positions. This brake is employed mainly to i1-lustrate the possibility of its use, and not so much from the standpointof necessity, because the nature of the worm drive shaft 95 can bedepended upon for the dead stopping of said wheel. But on the assumptionthat the use of the brake 94 is desirable, there is included in the armwhich denotes the brake, a tooth 96 which is held in engagement with therim of the wheel 93 through the action of a spring 91 against a nut 98on the screw stud 99 which depends from one extremity of the brake arm.The latter is pivoted at its other extremity by means of a screw I00which is driven into the adjacent header 68 (Fig. '7). An adjustment ofthe nut 98 on the stud 99 will vary the tension of the spring 97. Thelatter is also utilized as a yieldable abutment for the dog 81 becausewhen the lever ID is restored to its initial position (a, Fig. 3) afterhaving been elevated to the position b, said lever will pass slightlybeyond said initial position as at c (Fig. 14) due to its momentum,whereupon the box will strike the point of the screw 99 and absorb theshock incident to the return motion of the lever.

The worm drive shaft is journaled at its ends in the headers 68, 69(Fig, 7), its left end extending beyond the header 68 to support thetoothed wheel 93 which is keyed to the shaft as at 61. Said shaft has aspiral groove I02 which suggests the name worm shaft. The carriage I0derives its motion directly from the shaft during the act of writing,for which purpose the end standards Hi3, HM, are in driving contact withsaid shaft.

The respective standards include shoes H15, I65 (Fig. '7) which ride thecontiguous top halves of the shaft 95 (Figs. 13 and 14). The shoe I05 isbroader than the shoe I86 mainly in order to enlarge the bearing of thestandard )3 centrally of the drive shaft. In actual practice both shoeswill be of the same breadth, perhaps no thicker than the bottomterminals of the two standards. In each case the shoe includes a studI01 (Fig. 9) which occupies the groove I02, thus to provide for theshifting of the carriage 1 when the shaft 55 is turned.

Thus it is readily seen that when the lever M (Fig. 3) is lifted byaction of the lever N there will be a forward swinging of the rollerabutment 63 through the instrumentality of the cam H, as well as aturning of the shaft 95 through the instrumentality of the dog 81. Theresult of the turning of the drive shaft is a movement of the carriage Tin the direction of arrow (Fig. 7) from its starting position at theright toward an eventual stopping position at the left of the machine.

The previously mentioned bar 61 occupies openings H38 (Figs. .13 and 14)in the respective end standards I83, I84, thus to provide for theslidable support of the carriage 10. The end standards of the latter arerigidly interconnected in any suitable way, for example by a strip IIUacross the front, (Figs. 6 and '7). Inasmuch as the strip I i6 is onfront it is used as an indicator, being calibrated at ill in ems and ens(Fig. 7) or in such other divisions per linear inch according to thepoint system of measurement as may be found desirable in practice. Alink I09 (Fig. 9) is pivoted to one of the end standards, for exampleI03, for a purpose stated later.

This indicator strip H0 is directly in front of the mat 62 (Fig. 3) sothat the calibrations III are capable of being read in conjunction withthe vertical rulings H2 on the working face 6| of said mat (Fig. 15).The vertical rulings as well as the horizontal marks H3 are provided toaid in the justification of the type impressions. In actual practice thespacing of the rulings and marks will be varied in accordance with thetype sizes used. As is well known in the art of. printing, type sizesare currently designated sion of the idea the mat may be ruled andmarked more finely below the 8-point type style down to the 3 -pointsize, or more coarsely up to the 18-point size. In any event the rulingsand marks on the working face of the mat 62 should harmonize with thetype size embodied in the type element 31,

A pair of rollers I I4,I I5, provides for the feeding of the mat 62(Fig. 3). The back roller IM has trunnions H6, In, which actuallyconstitute a roller shaft. These trunnions are journaled in the endstandards I63, I04, and they carry knurled knobs H8, H9, for the purposeof turning the back roller by hand and independently of itsautomaticturning, for which there is provision,

Said automatic turning involves the use of a ratchet wheel I20 (Fig.which is loose on the trunnion II'I, but is pressed against a set collarI2I on said trunnion by a spring 'I 22, which abuts the knob H9. Thelatter is screwed upon the threads I23 on the terminal of the trunnionIll, and when the knob is screwed up hard enough against the spring I22,the resulting pressure against the ratchet wheel I29 holds the latterimmovable against the collar 2| and in respect to the trunnion III. Atsuch a time the actuation of the ratchet wheel I20 will turn the backroller I I4, but when it is desired to make an adjustment of the rollerin respect to any standing position of the ratchet wheel I20 then theknob H9 is backed off, first involving the necessity of holding the knobIIB so as to reduce the tension of the spring I22 and then permit theturning of,

the roller by means of said knob H8.

The front roller H5 is an idler. It has trunnions I24 which are turnablycarried by links I25 which are pivoted at I26 to the standards I93,

- I04, and extend forwardly therefrom. The front This ramp exercises acam action upon a pawl I28 which has a tooth I29 (Fig. 13) in engagementwith the ratchet wheel I29. The pawl I28 is carried by and guided in abearing I35 which is part of a bracket I3! (Fig. 13) secured to theadjacent standard I04.

The latter also has pins I32 to. which springs I33 are anchored at oneend, the other ends of the springs being attached to pin I34 on the pawlI28. The disposition of the springs I33 is such (Fig. 13) that the pawlI28 is drawn downwardly in the bearing I39, thus to be properlypositioned in reference to the ramp I2'I for the action which takesplace when the carriage I9 is returned to its starting position at theright (Fig. 7).

At that time the pawl I28 rides the ramp I21 (Fig. 7), the lower end ofthe pawl being desirably beveled at I35 to facilitate theinterengagement. A clockwise turn is imparted to the back roller H4(arrow 9, Fig. 13), thereby raising the mat 62 in readiness fortyping-the next line. The distance between lines can be regulated byadjusting the ramp I2I. For this purpose the ramp is slotted at I36(Fig. 7) to accommodate the stem of a set screw I3I that is driven intothe header 69.

A micrometer adjustment is provided for the.

setting of the mat 62 in exact relationship't'o is made of a fineadjustment whereby the rulings I I2 can be registered exactly with thecalibrations I I I. 3, 7, and 8) which is supported by the end standardsI83, I54. The right end I39 (Fig. 7) can'be squared or otherwise madecross sectionally noncircular so that it will not turn while being slidin the standard I54 which supports that end."

The left end of the shaft I38 is threaded at I49 (Fig. 8) to occupy thethreaded bore of a knob MI which includes a sleeve terminal I52. Saidterminal is revoluble in the bore I43 of the standard I93, with which ithas a swivel connection by virtue of the occupancy of the point of asmall screw I44 in a groove M5 around the sleeve.

Thus the turning of the knob MI will shift the shaft I38 either one wayor the other in the axial direction, thereby to shift the mat 62 inreference to the indicator strip IIfl, because ofthe grip which a pairof clips I46 carried by the shaft I38 has on the opposite margins of themat (Fig. 7). Each'of these clips includes a backpiece I II againstwhich the mat rests, and a front spring piece I48 which presses towardthe back piece and thus exercise a degree of friction against thecontiguous margin of the mat.

Regulation of the manipulation of the actuating lever I4 is secured by acontrol generally designated I49 (Fig. 1). This control consists of theupper and lower guides I50, I5I, (Figs. 6 and 24). The upper guide I59is essential but the lower guide is no less important because by meansof it it becomes possible to accurately justify the imprinting of thetype so that successive lines will be exactlythe samepredeterminednumber of ems or ens in width. Both of the guides I59,

I5I, comprise the arc of a circle which is struck from the aXis of theshaft I9 as the center. These guides are substantially in verticalregistration (Figs. 22 and 23) although this is not a prerequisite. Theends of the upper guide I59 are secured at I52 to the tops of standsI53.

These are flanged at I54 (Fig. 2) and are fastened down thereat to thebase I by means of screws I55. The front face I56 of the upper guide isset at a pitch, thus to make it easier for the operator to read theindicia I57 which are inscribed thereon (Fig. 24). Said indiciacorrespond with the types 54 in the element 31 so that when thefront ofthe lever I4 is moved into registration with the desired indication onthe upper guide Hill, the selected type will be moved to the impressionpoint 64 in readiness for the act of imprinting the mat.

Notches I58 (Fig. 24) are out into the upper guide I59 to insure theregistration of the lever I4 with the selected character. To this endthe lever has a square hole I59 (Fig. i). in which the cross sectionallysquare stem I66 (Fig. 22)'is slidable. This stem has an angled point I6I (Fig. 24) which is adapted to enter the selected notch when the leverI4 is depressed. Springs I62 anchored at I83 to the sides of the leverI4 and at I64 to the sides of the stem I tend to normally draw the stemdown and to keep its stop I65 in contact with the top of the lever (Fig.22). But said This purpose is served by a shaft I36 (Figs;

springs are adapted to yield (Fig. 28) upon the continued downwardmotion of the lever I4 after engagement has been made between the guideI58 and the point ISI for a purpose presently described.

The extent of said continued downward motion can be regulated to a finedegree, and this regulation is the prime factor in justifying a line oftype imprints or impressions, in other words, the prime factor in sospacing the individual imprints or impressions that the last one of afull line will end exactly on the right margin of a column. This resultnecessitates variations in the step motion of the carriage I (Fig. 9)and said variations are quickly produced by the operator during thecomposition of a line through the use of stop elements I68 or Ifi'l(Figs. 25 and 27).

There is considerable opportunity for variation in the use of theseelements, but in any case they are employed as inserts in the lowerguide I! (Fig. 24) to determine the arc movement of the plunger I'lI onlever I4. With respect to Fig. 24, each of the notches I58 in the upperguide I56 has a matching hole I68 (Fig. 24) in the lower guide I5I,obviously in a position in vertical arc alinement. The holes I58 (Fig.24) are for the reception of pins I69 (Fig. on each of the elements I66,and these elements are supplied in varying heights. Said elements arestabilized in their positions in the lower guide I5I, in addition to themutual support which their lateral contacts affords, by fins IIU whichproject down and contact one vertical side of the lower guide either atthe front or back.

The previously mentioned plunger or equivalent abutment III projectsfrom the underside of the lever I4 (Fig. 22). This plunger is in theform of a screw which is driven through the lever and has a nut I'I2 forlocking its adjustment. A point I'I3 on the nether end is adapted toregister with and enter either one of the holes I68 (Fig. 23) or anaperture I14 (Fig. 25) in the top face of a chosen stop element I66. Itis clearly seen that the extent of the foregoing continueddownward'movement of the lever I4 will be determined by the height ofthe stop element I66 in any given type position, or of the altitude ofthe top face of the guide I5I. A stop element I66 of less height(h,'Fig. 24) than its component (2', Fig. 24) if selected forregistration by the plunger III will permit a downward movement of thelever I4 to a greater extent than if its higher component had beenselected.

Thus in the first instance there is a more pronounced elevation of thelever I!) (Fig. 14) than in the second instance, resulting in a greaterangular motion of the toothed wheel 93 and drive shaft 95, and a longerstep of the carriage I0 toward the left than would occur in response tothe shorter downward movement of the actuating lever. The greatermovement is necessary to accommodate such broad letters as m, w, etc...while the less movement agrees with the requirements of narrow letterssuch as 1, etc. The stroke variations which can be achieved in thecontrol I49 '(Fig. 1) will be reflected in the step motions of thecarriage I0. Therefore, all that the opera'to'r has'to do is to watchthe progress of the line which he is typing on the mat 62 and byconsulting the vertical rulings II2 :(Fig. 15) he can determine thenumber of points which are avail- .able to him to finish out a completeline, whereupon -he will select the stop elements IE6 in such manner as'to effect proper spacing to secure a fflushending to the line.

not always having available a sufficiently large supply of stop elementsI to meet all possible demands for justification. Thus in lieu ofattempting to supply numbers of sets of stop elements I68 graded indecimal sizes as to heights, provision is made for regulating thealtitude of the lower guide I5I. For this purpose each of the stands I53is slotted at I'I5 (Fig. 2). Each slot is occupied by the respective endof the lower guide I5I. A threaded hole H6 in that end has a screw I'I'Idriven through it. The head of the screw rests upon a shoulder I'I8which is defined by an enlargement of the respective stand, the otherend of the screw being swiveled at I19. The effect of turning the screwsis to raise or lower the guide I5I, the extent of either movement beingmeasured by a scale I on each of the stands I53.

Reverting to the stop elements I66, I61, it is desired to now makespecific reference to Figs. 26 and 2'7 which illustrate the modificationwhich the elements IBI comprise. The lower guide I5I has a series ofholes as before, now designated I8I, constituting the counterbores ofnotches IBIa: into which the top edge of the guide I5I is formed.instead of being smooth as in Fig. 24. Said notches have matchingnotches I82 in the tops of the elements I61, this arrangement elevatingthe notches I8 Ix, so to speak.

The latter are used to stabilize the elements IE'I when emplaced uponthe lower guide I5I, for which purpose said elements are beveled at I83to seat in the notches IBIx when the pins I84 (Fig. 2'7) are fitted inthe holes I8I. The top notches I82 are the equivalents of the aperturesI'M (Fig. 24), and are adapted to be engaged by the point I13 or somesubstitute for it.

As the foregoing step motions of the carriage continue the latter iseventually limited by a stop device I85 (Fig. 6). This stop devicecomprises a cross sectionally non-circular bar which is slidable in acorrespondingly shaped opening I86 in the left header 68. The stopdevice is fixed in position by a set screw I81 and in order to determinethe setting of the stop device graduations I88 are inscribed upon itsforward face (Fig. 7) which, when registered with a chosen side of thestandard 68, will produce an accurate determination of the stoppingpoint for the carriage. These graduations will be spaced in accordancewith the point system of type measurement, but in practice may beotherwise determined in accordance with the needs of the machine.

The return of the carriage ID to its starting position at the right(Fig. 1) is accomplished conveniently by a handle I89. This handle isaffixed to the front end of a shaft I90 which is supported in bearingsISI on the base I and extends back virtually to the end of the base.There said shaft carries a crank I92 which has pivotal connection at I93(Fig. 9) with the free end of the previously mentioned link I09. Thecrank Hi2 and link Hi9 constitute an articulation between the shaft I88and the carriage l8. Although the handle I69 is primarily intended forthe return of the carriage to its starting point, it is also useable tomove the carriage to the left, a necessary requirement at that timebeing the release of the wheel 93 (Fig. 14) from the brake 95.

Figures 19 and 20 illustrate a modification of the machine largelycomprising a reorganization of the basic elements for advancing thecarriage during the act of imprinting or impressing a line of type, andof moving the roller abutment up to its constricting position inreference to the mat. But inasmuch as many of the elements alreadydescribed are employed, said elements are designated by correspondingreference characters distinguished by the added exponent letters a,without necessarily repeating all of the description. The standard 2anow has an additional extension I94 (Fig. 20) which is made rigid withthe flange do by a web I95.

Said extension is forked at I96 for the bearing of the worm drive shaft95a and the sequestration of the toothed wheel 93a. The latter isctuated on the upstroke of the lever Ita (arrow 7', Fig. 20) by a pawlI91 which is pivoted at I98 to the back end of the lever. The latter isnow confined to the central stem Ila which in place of having thetransverse bar I2 and braces. I 3 (Fig. 1) merely accommodates the pawlI9! and restrains one end of a rod 208.

A stop pin 2i across the back end of the stem Ha limits the clockwiseturning of the pawl I97 under the influence of a spring 202 which isanchored at its ends to an extension of the pawl and to another pin atISil. Thus every depression of the actuating lever I ia (arrow 7c, Fig.2%) will raise the lever IE0, (arrow 7) by virtue of the liftingfunction of the arcuate bridge 2m, causing a turn of the wheel 93a andan axial movement of the shaft 95a in accordance with the extent of thedepression.

The same motion of the lever Illa permits the movement of the rollerabutment 83a forwardly to constrict the gap 83a at the printing pointunder the influence of a sufficiently strong pring 2! 2 connected to thelinkage. The latter consists of a rocker 233 (Fig. 20) to one end ofwhich the rod 299 is connected. Said rocker is pivoted at 254 to abracket 205 on the base Ia, and has a rod 295 connected to its otherend.

A cam 28'! surmounts the rod 286 and is held in contact with a block 208by means of a pair of springs 2&9 (Fig. 19). The contacting faces of thecam 29'! and block 208 are beveled to secure the desired cam action, butthe nature of the cam means for shifting the roller abutment is subjectto some variation, in any event being the equivalent of the cam IT inFig. 3.

The roller abutment 63a, has a stem 13a as before, and this stem issecured rigidly to the block 208 which thus becomes the equivalent ofthe lever 55 (Fig. 11) inasmuch as its movement by cam means isresponsible for the advance of the roller abutment toward a constrictionof the mat gap. The stem 13a is guided in a slot 2!!) in the bar orcarriage track 67a. The latter has a flange 2| I which backs the cam 20?and assures the desired cam action upon the block 268 when the rod 206is moved downward. This movement is effected by the spring 2I2, the endsof which are anchored to the base I a, and to the rod 205.

Said rod 265 thus responds to the spring 2I2 but only as and whenpermitted by the lever Ina. For this purpose the upper end of the rod296 rests against the lever I a (Fig. 29), being held there by thespring 2I2. The rod 2 30 operates in a hole 2603: in the arm I94. Theupward movement of the rod 200 is necessarily of a uniform extent,despite variations in the degrees of angular motion of the lever Ina,being so limited by a stop 2833: on the rod. The stop is desirably madeadjustable.

The end standards I03a, IMa, of the carriage 2 2a ride upon the bar 67aas before, but in place of having shoes with studs that ride the spiralgroove IBZa of the drive shaft 95a, said standards have extensions 2I3,2M, (Fig. 19) in which the drive shaft is secured at its ends, as at2I5.

The toothed wheel 93a has a stud 2 I8 that rides the groove, andinasmuch as the sides of the fork I96 confine the toothed Wheel againstaxial movement, it follows that each of its turns will cause an axialmovement of the driving shaft, thereby to advance the carriage la (arrow1, Fig. 19) as printing progresses.

Figure 21 will be recognized as being virtually identical with the topportion of Fig. 1, the ex-' ception being the conversion of themechanism into a typewriter or a machine for performing an equivalentfunction. The modification comprises the addition of a pair of inkingrollers ZI'I. These inking rollers are desirably composed of felt, andthey are carried by cores 2IS which are turnably mounted at ZIS uponarms 220 which extend out from the standard 22). In connection with thisreference numeral it is desired to state that all numerals in Fig. 21designating corresponding parts in the first modification aredistinguished by the addition of the exponent letter I) and withoutrepeating the description.

Reverting to the inking rollers 2H (Fig. 21) it would be deemed a simpleexpedient to either impregnate the felt rims with ink so that the inkingfunction will endure for a relatively long time as in the instance of atypewriter ribbon, or the machine may be supplemented by a source of inkto supply the felt rims from time to time.

, In any case the type faces 55b are intended to be inked so that whenthe selected character is brought into registration with the printingpoint Mb. the ensuing step motion of the carriage Itb will produce theimpression upon the paper with the rolling motion, which is one of thedominant characteristics of the invention.

The operation is readily understood. It has just been stated that theproduction of a readable character by the use of this machine is theresult of rolling the character into the mat, paper, or equivalentprintable surface, as distinguished from the formation of a character inother machines such as typewriters, by a staccato or percussive motionof a type bar. This rolling-in function is a prime requisite when makinga mat for stereotyping purposes. The latter is fundamental with theinstant machine, but as has been pointed out, the same principle isreadily diverted to equivalent uses to good advantage.

The operator sits in front of the machine and yields the actuating leverI by swinging it either to the right or left in reference to the controlI59, periodically depressing said lever after each type selection. Theindicia I57 (Fig. 24) are distributed across the face E56 of the upperguide I according to any prearranged plan. For example, the distributionof characters can be similar to the distribution of characters on astandard typewriterv keyboard. No good purpose would be served inenlarging upon this feature because the arrangement of the indicia,whether in single letters or entire groups in word formation, issomething which is entirely within the spirit of the invention. Havingmade a character selection on the front face I56 (Fig. 24) byappropriately swinging the lever I4, the operator presses down.

The swinging act turns the type element 31 so as to bring the selectedcharacter into registration with the printing point 64. Said printingpoint confronts the mat 62 and having established this condition thedown pressure of the lever 54 follows, as already stated, producing theresults depicted in Figs. 3 and 14.

The engagement of the angled point PM with the upper guide 15% serves astabilizing function. The lever M will be swung back and forth withconsiderable rapidity, making it necessary to fix the angular positionat which the selected depression is to occur, and stabilize it, as hasbeen said, so that there will not be any chance of the type element 31vacillating on its axis 32 after the registration of the selected typeface with the printing point has been established.

This function occurs upon the initial depression of the lever M and iscompleted when the angled point it! enters the notch I58 (Fig. 24) ofthe selected character. The continued downward movement of the lever Mlifts the lever to from its position a to its position b (Fig. 3) Thedisplacement of the locking roller I i toward the rear results in themovement of the roller abutment 63 toward the front. The confrontingsurfaces of this roller and of the selected type face 55 define the matgap, and the latter becomes constricted as the roller abutment 63advances forwardly, as stated.

Immediately following the constriction of the mat. gap the actuating dog8! (Fig. 14) reaches the toothed wheel 93 and gives it a turn. Theextent of the turn is determined by the distance that the plunger Hi(Fig. 24) is permitted to move downward, and that in turn is determinedby the height of the stop elements 1% or by the distance between thepoint i'lS-and the top face of the lower guide ifii in the event thatthere is no stop element in the particular selected type position.

After the roller abutment 63 has been driven forwardly and locked in itsimpressing position by the advancement of the are 82 (Fig. 3) onto thelocking roller iii, it is immaterial how much farther the lever I4 maybe depressed or the toothed wheel 93 turned, because the are $2 willsimply ride over the roller '16 during these extra movements and willnot disturb the abutting position of the roller 63. The locked positionof the roller 93 thus comprises a fixed factor in each impressingoperation which, in other words, means that the depth of the typeimpression is a fixed factor in each impressing operation. But theextent of the step advancement of the carriage l6 and the inescapableconcomitant rolling motion of the type element 31 are successivelyvariable factors which are determined each time by the permissive amountof movement of the plunger Ill (Fig. 24).

The foregoing turn of the toothed wheel 93, and consequently of the wormdrive shaft 95, moves the carriage iii toward the left (arrow f, Fig.'7). The mat 62 is firmly held in the carriage and the motion of thelatter draws the mat 62 through the now constricted gap 83 (arrow m,Fig. doing so with considerable force. Inasmuch as the roller abutment63 is locked in position and holds the mat firmly against the typeelement 31, it follows that the latter will yield, and desirably sobecause it is this yielding that produces the rolling-in of the typecharacter.

The yielding of the type element (arrow n, Fig. 5) is in the samegeneral direction as that of the motion of the carriage. The shaft 32(Fig. 3) does not turn, being held from doing so by the lock which thegear segment 24 affords. But the element 31 is capable of turning inreference to the locked shaft 32, doing so against the tension of thespring wire Ml which is anthe working face of the mat 62 (Fig. 15). This7 configuration of the working face is provided as a direct aid for theoperator in determining the number of type characters and spacing leftto complete a given line, the spacings being determined by the properuse of the stop elements I66, it"! (Figs. 25 and 27) in the guide iii.The right terminal of every complete line must come flush with the rightmargin of a column, and the foregoing aids are provided for the operatorso that this result can be achieved easily and quickly. In producing astereotype mat by means of this machine, it is possible to make a singleline, which line could be cut ofi from the mat and used as anindependent matrix for casting a single line slug in a machine adaptedto such purpose.

The other details of the machine have been enlarged upon already in thebody of the description, for example, the manner of making micrometeradjustments of the mat 62 laterally of the carriage '19 by use of theshaft I38 and knob I il (Fig. 8) as well as making micrometeradjustments of the mat vertically of the carriage by use of the tensionreleasing knob H9 at the right (Fig. 7).

In conclusion it is desired to point out that the back of the mat 62remains compartively smooth. In this respect it is in contrast with astereotyping mat as currently known, because in the latter the voidsbetween the type areas comprise relatively deep depressions which arerequired to be bolstered with strips of felt. This is necessary toinsure a uniformity of the mat for the casting process. The instantmachine produces the type impressions only, and with the exception ofthose instances wherein the impression is embossed, there will be littleoccasion for any sinking of the back of the mat nor for any consequentpadding to make the mat ready for casting.

I claim:

1. A machine of the character described comprising a carriage which isadapted to carry a mat, a type element having type faces subject toregistration with a printing point confronting said mat, selecting meanswith which to actuate the type element and so bring a selected type faceinto position at said point, means to then move the carriage in onedirection to correspondingly move the mat past said printing point,means backing the mat and providing frictional engagement thereof withthe selected type face and means establishing a yielding action in thetype element in agreement with the carriage movement so that theselected type face will momentarily follow the carriage and thus producethe imprint without blurring.

2. A machine of the character described comprising a carriage which isadapted to carry a mat, a type element having type faces selectivelysubject to registration with a printing point confronting said mat,means to rectilinearly move the carriage a step to advance the mat thatfar past the printing point, abutment means backing the mat at theprinting point, coacting with the selected type face to define aconstricted gap through which the carriage movement draws the mat byforce, and means providing for a turnable yielding of the type elementthereby to roll the contour of the selected type face across the mat.

3. A machine of the character described comprising a carriage which isadapted to carry a mat, a type element having a type face registrablewith a printing point confronting the working face of said mat, abutmentmeans in back of the mat, coacting with said type face to define a gapoccupied b the contiguous part of the mat, means to close the abutmentmeans against the mat and to move the carriage rectilinearly one stepthus to forcibly draw the mat through the resultingly constricted gap,and means providing for a turnable yielding of the type element therebyto roll an impression of the type face into the working face of the mat.

4. A matrix making machine comprising a carriage which is adapted tocarry a stereotype mat, a series of types selectively movable to animpression point confronting the Working face of the mat, means toselectively move the carriage in one direction in successive steps ofvariable lengths to agree with the width of successive type faces, meansproviding for a movement of at least the selected type simultaneouslywith and in the same direction as the carriage thus to avoid blurringthe type character as applied to the mat, and abutment means assuming afixed position in back of the mat and in line with the impression pointat each carriage movement to insure the penetrationof the type workingface into the mat.

5. A matrix making machine comprising a selectively operable typeelement having a series of type faces, abutment means confronting adesignated printing point at such element respecting which typeselections are made, means embodied in said element allowing independentmovement thereof across said printing point and in reference to theabutment means, a carriage adapted to carry a stereotype mat in a gapdefined by a selected type face and the abutment means at said printingpoint, means to press the abutment means firmly against one side of themat thereby to impress the type into the other side of the mat thus tosink the impression into one side of the mat, and means to impart a stepmovement to the carriage, thus to cause said. independent movement ofthe type element and thereby lay in the type impression withoutslippage.

6. A matrix making machine comprising a carriage which is adapted tocarry a stereotype mat, a turnable type element having a series of typefaces and being situated on one side of the mat, a roller abutment onthe other side of the mat in line with a designated impression pointchosen in reference to the type element, means for turning said elementto position a selected type at said impression point, means to drive theroller abutment hard against the respective side of the mat thus toforce the selected type into the other side of the mat and make animpression, means to move the carriage one step thus to force the mat inone direction between the roller abutment and the type element therebycausing said roller abutment to roll, and means embodied in the typeelement allowing for yielding therein and a corresponding rolling of theselected type in reference to the mat so as to produce the impressionwithout slippage.

7. A matrix making machine comprising a movable carriage which isadapted to carry a stereotype mat, a series of types selectivelymoviable to an impression point confronting the working face of the mat,abutment means in back of the mat and in line with the impression point,

means to successively drive the abutment means against the mat for eachof a succession of typing selection and accompanying carriage movements,thus to produce a succession of type impressions, and means to uniformlylock the abutment means at each one of its driving positions against themat thus to insure absolute uniformity in the depth of the successiveimpressions.

8. A matrix making machine comprising a type element having a series oftype faces, a shaft for selectively actuating said element, resilientmeans coupling the shaft with said element and providing for movement ofsaid element relatively to said shaft, means locking the shaft inposition after a type selection, a carriage adapted to carry astereotype mat across the face of a selected type, movable abutmentmeans backing the mat at the impression point designated by the selectedtype, serving to drive the mat against the selected type face, and meansto impart a step movement to the carriage thus to shift the abutmentmeans and mat and cause yielding of said resilient means for rolling thetype impression into the mat.

9. In a matrix making machine, a type element having peripheral typefaces, a shaft turnably supporting said element, a spring membercoupling the shaft to the element, means to turn the shaft for theadvancement of a selected type face to a printing point, said turningmeans then serving to lock the shaft in the set position, a carriagesupporting a stereotype mat in front of the selected type, abutmentmeans in back of the mat defining a constricted gap for the mat andimposing pressure thereagainst to sink the type face into the mat, andmeans to impart a step movement to the carriage thereby to forcibly drawthe mat through said gap and cause turning of the type element through ayielding of its spring coupling member for arolling motion of the typeface while making the impression.

10. In a matrix making machine, a type element having a peripheralseries of type faces, an actuating shaft for said element having aspring coupling therewith for imparting a type-selecting motion from theshaft to said element, means locking the shaft in position after a typeselection, a roller abutment in line with a designated impression pointchosen in reference to a selected type face, a carriage movabletransversely of said element and roller abutment supporting means tomove the carriage one step to forcibly draw the mat through said gap,causing a simultaneous rolling of said abutment and of the type element,the rolling of the latter occurring because of the yielding of itsspring coupling in reference to the locked shaft.

11. In a matrix making machine, a carriage adapted to support astereotype mat, a selectively operable type element in front of the mat,having a series of typefaces successively registrable with animpression'point at said mat, a roller abutment in back of the mat inline with saidpoint, and cam means for successively-driving the rollerabutment hard against the mat'and for temporarily locking the abutmentin said position preparatory to perfecting the impression of the matwith the type face.

12. In a matrix making machine, a carriage adapted to support astereotype mat, a selectively operable type element in front of the mat,having a series of type faces successively registrable with a printingpoint at said mat, a roller abutment in back of the mat in line withsaid printing point, a. pivotally mounted lever carrying said abutmentand normally positioned to provide an ample gap for the mat between thetype element and said abutment, and cam means to turn said lever on itspivot to drive the abutment hard against the mat to constrict the gap,said cam means serving to temporarily lock the lever and abutment inposition.

13. In a matrix making machine, a carriage adapted to support astereotype mat, a selectively operable type element in front of the mathaving a series of type faces successively registrable with animpression point at the mat, a roller abutment in back of the mat inline with the impression point being normally spaced sufficiently todefine a' gap for the passage of the mat, a pivoted abutment levercarrying said abutment and having a locking roller, and a pivoted leverhaving a cam engageable with. the locking roller upon a movement of therespective lever, said cam having an approach to ride upon the lockingroller. and displace the abutment lever for a movement of the rollerabutment hard against the mat,,said cam having an are then makingcontact with the locking: roller to temporarily lock the roller abutmentin said position.

14. In a matrix making machine, a carriage adapted to support astereotype mat in an impressing position, abutment means backing the matat a chosen impression point, a type element in front of the mat havinga series of type faces,

selecting means primarily operable to move the type element into aposition of registration of a selected face with said point, separatemeans respectively operable upon a secondary operation of saidselectingmeans first todrive the abutment means against the mat andsecond to shift the carriage thus to force the mat between the abutmentmeans and the selected typeface, and means yieldably supporting the typeelement in respect to said selecting means, thereby permittingsaidelement-to move commensurately with the carriage for a resultantrolling in of the selected type face into the mat.

15. In a matrix making'machine, a carriage adapted to support astereotype mat in an impressing position, abutment means backing the matat a chosen impression point, a turnable type element in front of themat having a series of type faces, selecting means primarily operable tovarious extents for an initial turning movement of the type. elementinto a position of registration of a selected'face with said point, saidselecting means then being secondarily operable, means utilizing a fixedportion of said secondary operation to set and lock the abutment meansagainst the mat, other means utilizing a succeeding but variable portionof said secondary operation for producing a variable step motion of thecarriage, thus to forcibly draw the mat between said abutment means andselected face, and means then enabling the type element to automaticallypartake of a secondary turning movement thus to roll in the selectedtypeface into the mat commensurately with said carriage step motion.

16. In a matrix making machine, a carriage adapted to support astereotype mat in an impressing position, abutment means backing the matat a chosen impression point, a type element in front of the mat havinga series of type faces, selecting means subject to a primary selectingoperation and a secondary impressing operation, means actuated by theselecting means in its primary operation to move the type element into aposition of registration of a selected face with said' point, meansoperable to a fixed extent upon the initial portion of said secondaryoperation to drive the abutment means against the mat and lock it there,and other means operable upon a variable portion of the succeedingsecondary operation of the selecting means to shift the carriage with acorrespondingly varying'step motion without-disturbing the lockedposition of the abutment: means relatively to the chosen impressionpoint.-

1'7; In a matrix making machine, a carriage adapted to supportastereotype mat in an impressing position, abutment means backing themat at. a chosen impression point, a type element infront ofthe mathaving. a series of type faces, selecting. means constituting the commonactuator for the type element, abutment means and carriage, independentinstrumentalitiesseverally identified with the type element, abutmentmeans and carriage successively operable by said selecting means firstto produce a variable type selection of said type element, second, toproduce an invariable position .of the abutment means hard against themat, and third, to produce a variable step motion .of the carriage todraw the matbetween the abutment means andthe .selectedtype. face, andmeans turnably supporting. the type element in respect to said selectingmeans, thereby accomplishing a.rolling in of the selected type face intothe mat. commensurately with the drawing motion of the mat.

18. In a matrix making machine,- a carriage.

adapted to support a stereotype mat in. an impressing position, abutmentmeans backing the mat at a-chosen impression point, a type element infront of the mat having a series of typefaces, selecting means subjectto two independent movements, means operable thereby by virtue. of thefirst movement to adjust the type element into a position ofregistration of a selected face with said point, separate meanssuccessively operable during the period of the second movement of saidselecting means, respectively to drive the abutment'means against themat and lock it in position and then to shiftthe carriage to pull themat between the abutment means and the selected type face, and ayieldable mounting .for the type elementenabling turning movement ofsaid. element and a consequent rolling in action of the.selected-typeface.

19. In a matrix making machine, a carriage adapted to support astereotype matin an impressing position, abutment means backing the matat a chosen impression point, a type element in front of the mat havinga series of type faces, selecting means constituting the common operatorof the carriage, abutment means and type element, and being subject totwo independent movements, means actuated during the first movement ofthe selecting means to set the type element in a position ofregistration of a selected.

face with said point, means actuated by a portion of the second movementof said selecting means to drive the abutment means against the mat andlock it in position, means actuated by the remainder of the secondmovement of said selecting means to shift the carriage and force the matbetween the abutment means and the selected type face, and a yieldablemounting for the type element enabling turning movement of said elementaway from its setting and a conse-. quent rolling in action of theselected type face.

20. In a matrix making machine, a carriage adapted to support astereotype mat in an impressing position, abutment means backing the matat a chosen impression point, a type element in front of the mat havinga series of type faces, selecting means constituting the common operatorof the carriage, abutment means and type element, and being subject totwo independent movements, means actuated during the first movement ofthe selecting means to set the type element in a position ofregistration of a selected face with said point, means actuated by aportion of the second'movement of said selecting means to drive theabutment means against the mat and lock it in position, means actuatedby the remainder of the second movement of said selecting means to shiftthe carriage and force the mat between the abutment means and theselected type face, a yieldable mounting for the type element enablingturning movement of said element away from its setting and a consequentrolling in action of the selected type face, and means capable ofvariably obstructing said remaining second movement thereby to vary theextent of shifting of the carriage.

21. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a selectively operabletype element in front of the mat having a series of type faces ofvarious breadths, means operable to shift the carriage in successivestep motions past successively selected type faces at an impressionpoint, a plurality of stop elements of various sizes to obstruct theoperation of said means at various extents of operation, thus to varythe step motions of the carriage in agreement with thevarying breadthsof the selected type faces, and holding means upon which said stopelements are interchangeably supported in obstructing positions, thus tovary the extent of operation of said operating means in any selectedposition of the type element.

22. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a type element in frontof the mat having a series of type faces of varying breadths, meansoperable to shift the carriage with a succession of steps to matchsuccessively selected type faces brought into registration with animpression point, at least one guide in respect to which said operatingmeans is movable to produce said carriage movement, and means stationedat different places on the guide, being of various sizes to limit thepermissive extent of operation of said operating means and so determinethe lengths of the carriage step motions in accordance with the breadthsof the selected type faces.

23. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a type element in frontof the mat having a series of type faces of various breadths, beingselectively operable to register selected faces with an impression pointat the mat, means operable to shift the carriage past said element witha step motion to meet successively selected faces at said point, a leverincluded in said operating means, a guide in reference to which thelever is movable to cause the stepping of the carriage, and a series ofstop elements arranged along the'guide, being of various sizes tointercept the lever at various extents of movement, thus to vary thelength of the carriage steps in agreement with the breadth of theselected type faces.

24. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a type element in frontof the mat having a series of type faces of various breadths, beingselectively operable to register selected faces with an impression pointat the mat, means operable to shift the carriage past said element witha step motion to meet successively selected faces at said point, a leverincluded in said operating means, a guide in reference to which thelever is movable to cause the stepping of the carriage, a series of stopelements arranged alongthe guide, beingof various sizes to intercept thelever at various extents of movement, thus to vary the length of thecarriage steps in agreement with the breadths of the selected typefaces, and means for adjusting the said guide, thereby to further varythe permissive extent of movement of the lever for any given position ofthe type element.

25. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a turnable type elementin front of the mat having a series of type faces selectivelyregistrable with an impression point at the mat, a shaft having gearingcoupled with said elementfor causing the turning, abutment shiftingmeans for imposing the abutment means against the mat at a respectivetype selection, a pivoted lever having means for actuating said abutmentshifting means, and an actuating lever pivoted to the shaft crosswisethereof, and having a lifting bridge in engagement with the first lever,said actuating lever being primarily turnable in one direction to movethe type element to the selected position, and secondarily movable inanother direction to swing the first lever.

26. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a selectively operabletype element in front of the mat having a series of type facesindividually registrable with an impression point at the mat, a wormdrive shaft coupled to the carriage for producing a requisite movement,a toothed wheel attached to the shaft, an abutment means carrying devicwhich is operable to press the abutment means against the mat, and aswingable lever having a cam and an actuating dog respectively andsuccessively to operate said device and to turn said wheel.

27. In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a type element in frontof the mat having a series of type faces selectively registrable with animpression point at the mat, a worm drive shaft and means for itsattachment to the carriage, a toothed wheel mounted on the shaft andmeans by which said wheel is held relatively stationary, said wheelhaving a driving connection with the shaft, a cam block carried by theabutment means, a cam to actuate the block for the displacement of theabutment means, and selecting means having instrumentalities forsuccessively actuating the type element fora-type selection, thenactuating the cam for a displacement of the block to drive the abutmentmeans against the mat,and finally turning the toothed wheel to displacethe drive shafttand shiftthe carriage. V

28. In a matrix making machine, a carriage adapted to support astereotype mat in an impressing position, abutment means backing themat, a selectively operable type element infront of the mat having aseries'of type faces of varying breadths, means operable to shift thecarriage with successive step movements thereby to periodically drawsaid mat between the abutment means and various type faces successivelyregistered with an impression point, a yieldable mounting for the typeelement enabling a turning movement of said element at any of itssuccessive registrations with the impression pointthus to produce arolling in action with the drawing of the mat, a member carried bysaid-.operablemeans and having a contact point, and stop'elementslocatedin fixed relationship to said operable means, being of various sizesinorder to vary the degree of operation of said last means and thus tovary the length of the steps of said carriage in accordancewith thebreadth of-the selected type face. 29.'In a machine of the character andfor the purposes described, a carriage adaptedtosupport a stereotypemat, a selectively operable type element in front of the mat havingaseries of type faces successively registrable with an impression pointat said mat, a roller abutment in back of the mat in line with saidpoint, cam means for successively driving the roller abutment hardagainst the mat and for temporarily locking the abutment in saidposition preparatory toperfecting the impression of the mat with thetype face, and means for altering the positionpof-the cam means inreference to the roller abutment thereby to regulate the depth of theimpression of said type face in-the mat.

30; In a matrix making machine, a carriage adapted to support astereotype mat, abutment means backing the mat, a selectively operabletype element having type faces of. various breadths successivelyregistrable with an impression point at the mat, means operable to movethe carriage with a step motion to match the successive type selections,a movable lever included in said operable means and having an abutment,a guide in reference to which the lever is movable to cause the steppingof the carriage, said guide being notched for every position of the typeelement, and correspondingly notched stop elements of varying heights asdetermined by the type face sizes distributed over the guide andseatingin the notches thereof, said elements variably intercepting theabutment of said lever thus to vary the movements of the lever and theresulting step lengths of the carriage in accordance with the breadthsof the type faces selected at said impression point.

31. A machine of the character described comprising a carriage which isadapted to carry a mat, abutment means backing the mat, being initiallyspaced therefrom, a type element infront of the mat, having type facessubject to registration with a printing point confronting said mat,manual means successively operable in each of a plurality of planes,means actuated by said manual means upon movement thereof in one of saidplanes, for registering a chosen type face with said printing point,means actuated by said manual means during an initial portion of asucceeding movement thereof in another plane to force the abutment meanstoward the type element and produce a constricted mat gap, means actingunder a concluding portion of said succeeding movement of said manualmeans to shift the carriage past the type element, and means embodied insaid element allowing limited local movement of said element so that thetype face can follow the carriage for the duration of said shift of thecarriage.-

EDWARD C. LAMPSON.

